/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.runtime.config.spring.parsers.specific;

import org.mule.runtime.core.api.MuleRuntimeException;
import org.mule.runtime.core.api.config.MuleProperties;
import org.mule.runtime.core.config.i18n.CoreMessages;
import org.mule.runtime.config.spring.parsers.AbstractMuleBeanDefinitionParser;
import org.mule.runtime.config.spring.parsers.MuleDefinitionParser;
import org.mule.runtime.config.spring.parsers.PreProcessor;
import org.mule.runtime.config.spring.parsers.assembly.configuration.PropertyConfiguration;
import org.mule.runtime.config.spring.parsers.delegate.ParentContextDefinitionParser;
import org.mule.runtime.config.spring.parsers.generic.ChildDefinitionParser;
import org.mule.runtime.config.spring.parsers.generic.MuleOrphanDefinitionParser;
import org.mule.runtime.config.spring.parsers.generic.OrphanDefinitionParser;
import org.mule.runtime.config.spring.parsers.processors.IdAttribute;
import org.mule.runtime.config.spring.parsers.processors.NameAttribute;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;

public class ExceptionStrategyDefinitionParser extends ParentContextDefinitionParser {

  public ExceptionStrategyDefinitionParser(Class exceptionStrategyClass) {
    super(MuleOrphanDefinitionParser.ROOT_ELEMENT, createRootDefinitionParser(exceptionStrategyClass));
    otherwise(createInFlowServiceDefinitionParser(exceptionStrategyClass));
  }

  private ChildDefinitionParser createInFlowServiceDefinitionParser(Class exceptionStrategyClass) {
    ChildDefinitionParser exceptionListenerDefinitionParser =
        new ChildDefinitionParser("exceptionListener", exceptionStrategyClass, false);
    exceptionListenerDefinitionParser.registerPreProcessor(createNoNameAttributePreProcessor());
    return exceptionListenerDefinitionParser;
  }

  static PreProcessor createNoNameAttributePreProcessor() {
    return new PreProcessor() {

      @Override
      public void preProcess(PropertyConfiguration config, Element element) {
        if (element.hasAttribute("name")) {
          throw new MuleRuntimeException(CoreMessages
              .createStaticMessage("name attribute on exception strategy is only allowed on global exception strategies"));
        }
      }
    };
  }

  public static MuleOrphanDefinitionParser createRootDefinitionParser(Class exceptionStrategyClass) {
    MuleOrphanDefinitionParser globalExceptionStrategyDefinitionParser;
    if (exceptionStrategyClass == null) {
      globalExceptionStrategyDefinitionParser = new MuleOrphanDefinitionParser(false);
    } else {
      globalExceptionStrategyDefinitionParser = new MuleOrphanDefinitionParser(exceptionStrategyClass, false);
    }
    globalExceptionStrategyDefinitionParser.addIgnored(AbstractMuleBeanDefinitionParser.ATTRIBUTE_NAME);
    return globalExceptionStrategyDefinitionParser;
  }

}
